Turbine.



H. V. SMITH.

TURBINE.

APPLICATION mum in. 28, um.

1,031,093. Patented July 2, 1912-.

2 SHEETS-SHEET l.

WITNESSES. I M

. uromv sr Patented July 2, 1912.

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INVENTOR ATTORNEY UNITED STATES HENRY PATENT OFFICE.

EUGENE H. H. SMITH, F BRIDGEPOR-T, CONNECTICUT.

TURBINE.

Specification of Letters Patent.

Patented July2,1912.

Application filed March 28, 1912. Serial No. 686,905.

To all whom it may concern: I

Be it. known that I. HENRY V. Snrrn. a citizen of the United States, residing at Bridgeport, county of Fairtield, State of Connecticut, have invented an improvement in Turbines, of which the following is a specification.

This invention relates to turbine engines adapted for general use and with any operating fluid as for example, steam. gas or water, and the invention has for its objects to simplify and cheapen the construction and to greatly increase the efficiency of the engine.

i5 With these and other objects in view. the invention consists in certain constructions and in certain parts, improvements and. combinations which will be hereinafter described and then particularly pointed out in the claims hereunto appended.

In the accompanying drawings forming a part of this specification, Figure l is an elevation with the case broken away to show the construction of the rotors; Fig. 2, an

elevation as seen from the rightin Fig. 1. the end plate being removed; Fig. 8, an inner face view of one of the end plates removed; Fig. 4, a detail sectional View on the line i i in Fig. 2, looking in the direction of the t arrows; Fig. 5, a section on theline 5--5 in Fig. *2, looking in the direction of the arrows; and Fig. 6 is a section on the line indicated by (3 in Fig. 1, looking in the direction of the arrow.

10 denotes the base, it the casing, 12 the end plates, and 13 the shaft shown as jour naled in bearings 14 upon brackets 15 secured to or made part of the end plates. Steam is supplied centrally of the casing by means of a pipe 16 and is exhaustedcentrally as at 17.

18 and 19 denote the rotors which are rigidly secured to the shaft; but are separated from each other leaving a space 20 between them. Each rotor comprises a hub 21 and a flange 22. v

23 denote blades provided with flanges 34 by means of which they are rigidly secured to the inner sides of the flanges and to the 59 peripheries of the hubs as clearly shown in Fig. 1.. The blades are placed alternately,

that is in staggered relation and at an ei'lective angle'to the planes of the flanges, for example at an angle of thirty degrees more or less, so that the steam as it-passes from turbine comprising a a blade upon one rotor will impinge against a blade upon the other rotor. It is obvious that space 20 will become at once filled with the operating fluid, which for convenience ive will consider to be steam. From this space the steam passes through ports 25 in the hubs and flanges of the rotors, (see Fig. 5), which terminate in inclined openings 26 in the outer faces of the flanges (see Fig. L). The direction of these openings is such as to cause the steam to impinge against the inner faces of the end plates. which are provided with alternate depressions 27 and raised portions The special shape of these depressions and raised portions is not of the essence of the invention. They are, however, so constructed as to catch the steam as it issues from openings 26 and utilize the whole force of the reaction in driving the rotors forward.

'29 denotes spaces between the rotors and the end plates. Steam passes from these spaces through passages 30 at the ends of the easing into a transverse passage 31 and thence out through the exhaust which is placed centrally of passage 31. it will be noted that there a primary and a second ary action of the steam on the rotors. First, its action on the blades, passing from the blades of one rotor across the central space and impingin; aga nst the blades of the other rotor, r. .d 59 d, its reaction upon the rotors as it issues from the inclined openings of the ports and impinges against the raised and depressed portions of the end plates.

Having thus described my invention 1 claim: M i

1. A turbine comprising a shaft. rotors secured thereto leaving a central space between them and provided with ports leading from said space to their outer faces, and blades upon the inner faces of the rotors inv staggered relation. v

2. A. turbine comprising a shaft, rotors secured thereto leaving a cent-ralspace between them and provided with ports leading from said space to their outer faces, and having inclined openings, blades upon the inner faces of the rotors in staggered relation and end plates having alternate depressions and raised portions against which the steam impinges as it passes from the ports. casing having v sage, passages leading thereto and an ex-' haust leadm means for taking steam, va transverse pastherefrom, end plates having alternate ralsed portions and depressions, rotors having a central space between them and end spaces between the rotors and the end plates, said rotors being provided'with ports leading from the central space and opening into the end spaces and blades upon the inner faces of the rotors in staggered relation, fluid passing from each 'rotor blade to a blade upon the other rotor and from the central space through the ports and against the end plates and thence outthrough the passages and exhaust. t

4. In a turbine, the combination with a casing provided with means for taking and exhausting fluid, of rotors having a central space betweenthem, blades on their inner faces in staggered relation and portsleading from the central space and opening in their outer faces. I i

5. In a turbine, the combination with a casing provided with means for taking and exhausting fluid, of rotors having a central space between them and comprising hubs and flanges, blades secured to the hubs andtianges in staggered relation, and ports leading from the central space through the hubs and opening in the outer faces of the flanges.

6; In a turbine, the combination with a casing provided with means for taking and exhausting fluid, and having end plates provided on tl1eir inner faces with raised and depressed portions, of rotors having blades on their inner faces in staggered relation space to their outer faces, of end plates having raised and depressed portions contiguous to the openings of the ports, substantially as described, for the purpose specified.

8. A turbine rotor comprising a hub and flange, blades secured to the periphery ofv the'hub and the inner face of the flange and ports leading from the inner face of the hub and opening in the outer face of the flange.

9. A turbine rotor having inclined blades on its periphery and ports leading from its inner face near the center and opening in its outer face near the periphery.

In testimony whereof I affix my signature in presence of two witnesses.

HENRY V. SMITH.

Witnesses I J. H, HINCKLEY, W. H. BULLARD. 

